So if you have an aftermarket exhaust and intake would you need custom tunes?

For simple mods like Exhaust and CAI they don't change anything enough to make a big enough difference in power. They claim to but it's a bunch of BS.
Anything more for mods you may need custom tunes tho.

I got mine from franchi, a gift from my fiance, and it just had the canned tunes. She was told by them they can't do custom tunes (incorrect I'm sure). But unfortunately since she went that route, I forked out extra cash to buy custom tunes elsewhere after the purchase. Custom is the way to go, hands down.

There is two types of tunes so you understand, preloaded and custom. Just about all the SCT models come with the three preloaded tunes on it written by SCT for your specific year and engine with an 87, 91 and 93 octane tune and can hold up to ten custom tunes as well.

If you go to www.sctflash.com, enter search by vehicle, input your trucks info, then pick a tuner, and click on Adjustable Options, it will list out everything that you can adjust specifically for your year/engine combo under the user adjustable options for any one of the three preloaded tunes on it ( like tire size, speed limiter, ect ect )

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